Galvanizing yog dab tsi?
Hauv kev tsim cov txheej txheem hu ua galvanizing lossis galvanization, steel lossis hlau yog coated nrog zinc los tiv thaiv thiab tiv thaiv corrosion. Muaj lwm cov txheej txheem galvanizing, tab sis kub-dip galvanizing yog ib qho uas nquag muab thiab ua haujlwm.
Qhov ua kom muaj zog ntawm cov hlau galvanized, uas sib txuas cov hlau lub zog thiab kev tsim kho nrog zinc-hlau txheej tiv thaiv corrosion, ua rau nws yog ib qho ntawm cov hlau siv dav tshaj plaws. Cov zinc ua raws li qhov cuam tshuam rau cov khoom corrosive los tiv thaiv lub hauv paus hlau, thiab txheej txheej kev txi ua rau cov hlau uas ruaj khov thiab zoo heev.
Vim nws qhov kev hloov pauv, nws tuaj yeem siv dav hauv ntau qhov haujlwm thiab kev lag luam, suav nrog kev tsim kho, kev ua liaj ua teb, hnub ci, tsheb, thiab lwm yam. Hauv cov ntu uas ua raws, peb yuav ua qhov zoo tshaj plaws los piav qhia meej txog cov txheej txheem ntawm cov hlau galvanized, ntau cov txheej txheem galvanization, qhov zoo, thiab kev siv hauv ntau qhov kev lag luam.
Galvanizing yog txheej txheem txheej hlau los yog lwm yam hlau nto nrog ib txheej ntawm zinc los muab kev tiv thaiv corrosion thiab ua kom ntev. Galvanizing feem ntau muab faib ua ob txheej txheem ntawm kub-dip galvanizing thiab electro-galvanizing.
Kub-dip galvanizing txheej txheem:
Deg pretreatment: Cov hlau yuav tsum tau plated yog ntxuav thiab degreased kom tshem tawm cov av thiab roj ntawm qhov chaw.
Immersion Pickling: Soak steel hauv cov kua qaub, feem ntau dilute sulfuric acid los yog hydrochloric acid, kom tshem tawm oxide thiab xeb txheej ntawm qhov chaw.
Immersion Galvanizing Bath: Immerses pickled steel hauv molten zinc. Thaum kub kub, zinc kua reacts chemically nrog cov hlau nto los tsim ib txheej zinc-hlau alloy txheej.
Txias thiab solidification: Cov hlau raug tshem tawm los ntawm lub galvanizing da dej thiab tso cai rau txias thiab solidify kom cov galvanized txheej adheres khov kho rau cov hlau nto.
Electro-galvanizing txheej txheem:
Kev npaj deg: Cov hlau yuav tsum tau plated yog ntxuav thiab degreased kom tshem tawm cov av thiab roj.
Pre-plating kev kho mob: Cov hlau yog soaked nyob rau hauv ib tug acidic los yog alkaline tov kom tshem tawm oxide thiab xeb txheej ntawm qhov chaw thiab npaj nws rau cov txheej txheem electroplating.
Electroplating: Siv cov hlau ua cov cathode thiab zinc ua cov anode, thiab tso zinc ions rau saum npoo ntawm cov hlau los ntawm cov hluav taws xob tam sim no los tsim ib txheej zinc txheej.
Ua kom txias thiab ua kom khov: Tshem cov hlau tawm ntawm lub tank electroplating, cia nws txias thiab khov, kom cov txheej txheem electro-galvanized yog ruaj khov rau cov hlau nto.
Galvanizing muaj ntau yam zoo:
Zoo huab cua tsis kam
txheej txheej galvanized tuaj yeem tswj tau zoo stability thiab kav ntev nyob rau hauv ntau yam kev nyab xeeb, thiab tiv thaiv lub hnub ci, nag, av noo thiab huab cua hloov pauv.
Muaj zog tiv thaiv corrosion
txheej txheej galvanized tuaj yeem muab kev tiv thaiv corrosion zoo, cais cov hlau los yog lwm yam hlau los ntawm ib puag ncig sab nraud, txo qhov kev sib cuag ntawm cov pa oxygen, dej thiab lwm yam corrosive media, thiab ua kom lub neej ntev ntawm cov hlau.
Tus nqi kho mob tsawg
Tus nqi txij nkawm ntawm cov khoom siv galvanized yog qhov tsawg, vim tias cov txheej txheem galvanized nws tus kheej muaj qhov ruaj khov thiab tsis tas yuav tsum tau kho ntau zaus los yog rov ua dua. Muaj zog weldability.
Daim ntawv thov
Galvanizing yog dav siv nyob rau hauv ntau yam teb, ib co ntawm lub ntsiab daim ntawv thov thaj chaw muaj xws li:
Cov vaj tse thiab cov vaj tse: Galvanized steel feem ntau yog siv rau hauv cov qauv kev txhawb nqa, kab teeb, trusses, thiab lwm yam hauv cov tsev los muab kev tiv thaiv corrosion thiab kav ntev. Lawv tau siv dav hauv cov tsev nyob, cov tsev lag luam, txuas hniav, txoj kev siab, thiab lwm yam.
Steel qauv engineering: Galvanized steel feem ntau yog siv los tsim cov khoom siv hlau thiab cov qauv hlau, xws li steel trusses, steel beams, steel kav, thiab lwm yam. Cov qauv no tau siv dav hauv cov chaw tsim khoom, chaw ntau pob, tshav dav hlau, aerospace thiab lwm yam.
Automotive kev lag luam: Galvanized steel yog siv nyob rau hauv tsheb tsim rau lub cev Cheebtsam, chassis, log thiab lwm yam structural qhov chaw. Lawv muab kev tiv thaiv corrosion thiab ua rau kom muaj zog thiab kev nyab xeeb ntawm lub tsheb.
Lub zog hluav taws xob thiab kev sib txuas lus: Galvanized steel feem ntau yog siv rau hauv cov kab xa hluav taws xob, cov tais hluav taws xob, cov kav hlau thiab cable tiv thaiv thiab lwm yam. Lawv tiv taus huab cua hnyav thiab tiv thaiv corrosion, ua kom muaj kev ntseeg siab ntawm lub zog thiab kev sib txuas lus.
Kev ua liaj ua teb thiab tsiaj yug tsiaj: Cov khoom siv Galvanized yog siv dav hauv kev ua liaj ua teb thiab tsiaj txhu, xws li cov tsev ua liaj ua teb, tsev tsiaj txhu, laj kab, cov dej tso tsheb hlau luam thiab cov cuab yeej siv dej, thiab lwm yam. Lawv yog cov ruaj thiab corrosion resistant, yoog raws li qhov xav tau ntawm thaj chaw ua liaj ua teb.
Kev ua zaub mov thiab kev khaws cia: Galvanized steel yog dav siv hauv kev ua zaub mov thiab cov khoom siv khaws cia, xws li cov khoom noj khoom haus, cov kav dej, cov khoom siv tub yees, thiab lwm yam. Lawv ua lub luag haujlwm tseem ceeb hauv kev nyab xeeb thiab kev nyiam huv ntawm zaub mov.
Tsis tas li ntawd, galvanized steel yog siv nyob rau hauv ntau yam xws li nkoj tsim, roj thiab roj pipelines, hnub ci zog tsim khoom, thiab cov rooj tog tsim. Lawv muab kev tiv thaiv corrosion thiab kav ntev hauv cov cheeb tsam no kom tau raws li cov kev xav tau ntawm cov ntawv thov tshwj xeeb.
